Evolution and Water Resources Utilization of the Yangtze River, Jin Chen
Автор: P.E. Rajasekharan; V. Ramanatha Rao Название: Conservation and Utilization of Horticultural Genetic Resources ISBN: 9811336687 ISBN-13(EAN): 9789811336683 Издательство: Springer Рейтинг: Цена: 22359.00 р. Наличие на складе: Есть у поставщика Поставка под заказ.
Описание: The conservation of crop genetic resources is one of the important elements in efforts to sustainably increase agricultural production in low-income countries, and to guarantee long-term food security, especially for the low-income population groups in these countries. Horticultural crops, as high-value crops, have an important role to play in revitalizing rural economies and can add significantly to national economies. Moreover, horticulture provides more than twice the number of jobs compared to traditional cereal crop production, and the shifting of conventional agriculture towards high-value horticulture has increased employment opportunities in developing countries. To exploit this potential, researchers need a vast array of horticultural genetic resources and information on new traits. Horticultural crops, which are only a part of PGRFA (Plant Genetic Resources for Food and Agriculture), are characterized by a wide and varied range of species. In fact, there are five major horticultural crop groups: fruit and nut crops, vegetables, food legumes, roots and tubers, and lastly the ornamental and medicinal group. In this context, the present book provides a comprehensive overview of the current state of conservation and utilization of horticultural genetic resources, addressing contemporary approaches to conservation in connection with different technologies, including biotechnological approaches as practised in India and in some cases, globally. It includes a brief chapter on the unique nature of horticultural genetic resources, providing a rationale for viewing them as being distinct from field crop genetic resources. Subsequent chapters share insights on protocols for the conservation of selected horticultural crops ex situ, and focus on the increased need to complement these efforts with in situ conservation approaches. Geospatial tools are also briefly described, emphasizing their utility with regard to mapping and managing resources. The book also explores the wild gene pool in horticulture crops; discusses legal aspects related to horticultural genetic resources and biotechnological aspects; and describes the key aspects of sustainable management and replenishment. Given its scope, the book offers a valuable resource for all horticulturists, graduate students, researchers, policymakers, conservationists, and NGOs engaged in horticulture in particular and biodiversity in general.
Bird migration is a well-researched phenological event. However, few studies in North America have investigated the effects of climate change and extreme weather on the relationships of migratory avian species and their seasonal resources. This is a critical gap in knowledge that limits our ability to prioritize management and conservation applications throughout the annual cycle. Phenological Synchrony and Bird Migration: Changing Climate and Seasonal Resources in North America explores critical linkages between migratory birds, their seasonal resources, and shifts in climate change and weather events.
Gathered from projects conducted during spring or fall migration, the book covers topics such as:
Conservation and management considerations for migratory birds throughout the United States with respect to climate change
The relation of climate on the wintering grounds to spring migration of short- and long-distance migratory birds
The relationships of migratory birds and their seasonal resources, and the nature of these relationships in the face of climate change and extreme weather events at stopover habitats in both spring and fall migration
With contributions from over 40 researchers, the book will help readers understand the effects of climate change on migratory birds and will provide a solid basis for further inquiry and research in this area.
Introduction.- Analysis of Supply and demand of water resources in the study area.- Groundwater system in the study area.- Simulation, assessment and management of the key water source sites.- Assessment of coal mining impact on water resources.- Study on multi-objective optional allocation of complex water resources system.- Patterns of rational development and utilization of water resources in the study area.- Conclusions and suggestions.
Автор: Ellen Wohl Название: Sustaining River Ecosystems and Water Resources ISBN: 3319651234 ISBN-13(EAN): 9783319651231 Издательство: Springer Рейтинг: Цена: 6986.00 р. Наличие на складе: Есть у поставщика Поставка под заказ.
Описание: In this context, water resources refers to ecosystem services including water supply, water quality, flood control, erosion control, and riverine biota (e.g., freshwater fisheries).
